Improvement in engine-governors



W. L. CULLAMURE.

Engine-Governors. NO lOZQS, lPatented A'pril28,1874.

UNITED STATES PATENT OEEIoEc WILLIAM L. COLLAMORE, OF WARREN, RHODE ISLAND.

IMPROVEMENT IN ENGINE-GOVERNORS.

Specification forming part of Letters Patent No. 150,293, dated April 28, 1874; application filed March 31, 1874.

To all whom it may concern:

Be it known that I, WILLIAM L. GOLLA- MORE, of Warren, in the county of Bristol and State of Rhode Island, have invented a new and useful Improvement in Engine-Grovernor; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

This invention consists in the employment, in connection with an engine or other governor, and a dash-pot of usual construction, of an intermediate spring connection, uniting the moving parts of the governor to the piston of the dash-pot, by means of which the governor is adapted to move with greater freedom, and to be checked with less suddenness under quick changes in the load, than it' its parts were rigidly connected.

In the drawings, Figure l represents a view in elevation of my invention as applied to a governor; and Fig. v2, a partial view of the same, representing the springs in action.

To enable others skilled in the art to make and use my invention, I will now proceed to describe fully its construction and manner of operation.

A A represent vertical rods, rigidly attached to the vertically-moving cylinder a of the governor. B B represent the dash-pots, of usual construction, provided with the pistons b b, as shown. C c c represent an intermediate spring connection, uniting the pistonrods I) b to the rods A A, moving with the governor. The spring connection may be ot any proper construction. In the drawing, C represents a U-shaped plate-spring, connected at one end to one of the rods A, and at the other to the piston-rods b I), which is adapted to yield in either direction. c c represent coiled springs, located upon the piston-rod b above and below the arm m, rigidly attached to one of the rods A. These springs are secured in place at each end of the piston-rod, so that they are adapted together to yield in either direction.

By means of this intermediate spring connection, the advantages derived from the use of the dash-pots are obtained without interfering too much with the iiuctnations of the governor under sudden changes, the lsprings yielding sufficiently to prevent the movement of the governor from being abruptly checked by the action of the dash-pots.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, with a governor and dashpot, of an intermediate spring connection, substantially as described.

This specication signed and witnessed this 26th day of March, 1874.

VILLIAM L. OOLLAMORE. Witnesses:

STEPHEN EssEX, EARLE CoLLAMoRE. 

